I have way more ideas than I have time to build. Maybe we should talk. What is your preferred stack?
So we should think about these things in terms of how much agency are we willing to give away in each case and for what gain[1].
Then the ecosystem question that the paper is trying to solve will actually solve itself, because it is already the case today that in many processes agency has been outsourced almost fully and in others - not at all. I posit that this will continue, just expect a big change of ratios and types of actions.
[1] https://essays.georgestrakhov.com/artificial-agency-ladder/